A pure class A design transformed into a MKII model Capable of optimising sound density Pursuing a sound that appeals to the senses whilst creating a deep musical impression is the ultimate role of the audio amplifier. With pure class A design, the L-550AXII integrated amplifier is a refined version of the L-550AX which was itself fully restyled in 2011. The MK II model boasts improved functionality with the latest technologies equivalent to the higher grade L-590AXII such as Version 4.0 of the original amplification feedback circuit ODNF, the new LECUA1000, computerized attenuator, and a buffer circuit with discrete configuration as standard. Such features result in a model with capability of expression above its class, offering a mellow and dense sound that only pure class A amplification can create. The L-550AXII is a mid-range integrated amplifier that increases its maturity in an attractive, functional design for music to be thoroughly enjoyed.
Spec Rated output20W + 20W (8O), 40W + 40W (4O) Input sensitivity / input impedancePHONO (MM): 2.5mV/47kO PHONO (MC): 0.3mV/100O LINE: 180mV/47kO BAL.LINE: 180mV/55kO MAIN-IN: 450mV/47kO Output voltageRECOUT: 180mV, PRE OUT: 1V Frequency responsePHONO: 20Hz to 20kHz (±0.5dB) LINE: 20Hz to 100kHz (+0, -3.0dB) Total harmonic distortion0.007% or less (8O, 1kHz) 0.02% or less (8O, 20Hz to 20kHz) S/N ratio (IHF-A) PHONO (MM): 91dB or more, PHONO (MC): 75dB or more LINE: 105dB or more Volume adjustmentNew LECUA1000 Amplification circuitODNF 4.0 Output configuration Bipolar parallel push-pull Damping factor 200 Max. amount of tone controlBASS: ±8dB at 100Hz TREBLE: ±8dB at 10kHz Power supply230V~(50Hz) / 115V~(60Hz) Power consumption 230W 170W (under no signal), 0.5W (at standby) External dimensions440(W) x 178(H) x 454(D) mm front side knob of 20mm and rear side terminal of 27mm included in depth Net weight24.3kg (main unit) Accessories Remote control (RA-17A) Power cable Speaker terminal Supported Y-lug terminal dimensionWidth of part a: 15mm or less Width of part b: 8mm or more * Connection may not be performed depending on the shape of the Y-lug terminal.